CN216307943U - Heat exchange station system based on user room temperature flexible adjustment heat supply - Google Patents
Heat exchange station system based on user room temperature flexible adjustment heat supply Download PDFInfo
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- CN216307943U CN216307943U CN202121403738.4U CN202121403738U CN216307943U CN 216307943 U CN216307943 U CN 216307943U CN 202121403738 U CN202121403738 U CN 202121403738U CN 216307943 U CN216307943 U CN 216307943U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
The utility model discloses a heat exchange station system capable of realizing energy utilization and flexibly adjusting heat supply based on user room temperature, relating to the technical field of coupled heat supply and comprising a solar photo-thermal heat collection system, a heat exchange and heat storage system and a heat exchange station coupled heat supply system which are sequentially connected; the heat collection system and the heat supply system realize decoupling, the heat storage system is introduced to realize decoupling of heat collection and heat supply processes, the heat collection power of the heat collection system is adjusted in real time according to the solar irradiation intensity to realize collection of solar energy, the solar energy is converted into heat energy, and the heat energy is stored in the hot water heat storage tank; according to the time and space imbalance of the heat exchange station, heat is reasonably distributed to meet the heat load requirements of users at different time intervals, the adjustment flexibility of the heat exchange station is improved, and the heat of the heat storage system is called in real time to meet the differentiated requirements of the users.
Description
Technical Field
The utility model relates to the technical field of coupled heat supply, in particular to a heat exchange station system capable of realizing energy utilization and flexibly adjusting heat supply amount based on user room temperature.
Background
At present, the heat supply industry in China mainly depends on heat energy converted from traditional fossil energy, and the main heating and heat supply modes comprise a coal-fired boiler, a gas-fired boiler, an electric boiler, a scattered biomass boiler of a user and the like. Based on different factors such as fuel supply, high cost, serious environmental pollution and the like, the traditional heating or heat supply modes have limitations or application difficulties in different degrees. With the rapid development of urbanization in China, the heat supply demand load is continuously increased, and the problems of unbalance, inequality and the like of heat supply are increasingly prominent.
Heating and heat supply generally require a heat source to have stability, sustainability and high reliability, but at present, along with the continuous expansion of the scale of a town heat supply pipe network, the unbalanced demand of centralized heat supply heat load at different time intervals is gradually highlighted. The delay effect of heat delivery of the heat supply pipeline is increased, so that the adjustment delay at the heat source side acts on the user side, the thermal imbalance is caused, the heat supply quality is influenced, and meanwhile, different buildings or building groups have different load characteristics.
The heat storage technology is one of key technologies for solving the problem of mismatching of energy supply and demand and improving the energy utilization efficiency. In recent years, sensible heat storage technology and phase change latent heat storage technology have been widely studied, wherein the normal pressure sensible heat hot water storage technology has a wide application prospect in a plurality of fields such as solar heat utilization, waste heat recovery, electric power peak clipping and valley filling, heating and building energy saving. The solar energy resources of China are very rich, the solar photo-thermal technology is also very fierce, and the solar water heaters are also very widely used. Under the background, solar photo-thermal heating and heat supply is rapidly developed.
SUMMERY OF THE UTILITY MODEL
Aiming at the problem of time and space imbalance of heating production and demand in the prior art, the utility model provides the heat exchange station system capable of flexibly adjusting the heat supply quantity based on the room temperature of a user, which has clear structural layout, is convenient to operate and maintain, can reasonably and effectively supplement heat, meets the heat load demand of the user at different time intervals, and improves the adjustment flexibility of the heat exchange station.
The technical scheme adopted by the utility model for solving the technical problem is as follows: a heat exchange station system capable of flexibly adjusting heat supply based on user room temperature comprises a solar photo-thermal heat collection system, a heat exchange and storage system and a heat exchange station coupling heat supply system which are sequentially connected;
the solar photo-thermal heat collection system comprises: the solar energy heat collection system comprises a heat transfer medium loop formed by circularly communicating a groove type solar heat collector, an oil-water heat exchanger, an oil-gas separator and a heat transfer oil circulating pump through pipelines in sequence, wherein the heat transfer medium loop is used for heating a heat transfer transmission medium injected into a solar energy photo-thermal heat collection system by the groove type solar heat collector and then conveying the heated heat transfer transmission medium to the oil-water heat exchanger;
the heat exchange and heat storage system comprises: the heat storage device comprises a heat storage medium loop formed by circularly communicating an oil-water heat exchanger, a hot water heat storage tank and a hot water circulating pump through pipelines in turn, wherein the heat storage medium loop is used for heating a heat storage medium and conveying the heat storage medium to the hot water heat storage tank after heat exchange of heat from a heat exchange transmission medium in the oil-water heat exchanger;
the heat exchange station is coupled with the heating system: the system comprises a supplementary heat supply medium loop formed by circularly communicating a hot water heat storage tank and a water supply and return branch of a heat exchange station through a pipeline, wherein the supplementary heat supply medium loop is used for enabling a heat storage medium to transmit heat from the hot water heat storage tank to the side of the heat exchange station.
Furthermore, a low-level oil groove is connected to the pipeline at the front section of the heat transfer oil circulating pump, and the low-level oil groove is connected with the oil injection gear pump.
Furthermore, the oil-gas separator is connected with a high-level oil groove, and the high-level oil groove is provided with an exhaust hole.
Furthermore, the water supply and return branch of the heat exchange station comprises a heat source, a primary net circulating pump and a plate heat exchanger which are connected in a closed loop manner; the rear end of the plate heat exchanger is communicated to the front end of the hot water heat storage tank through a pipeline, and a stop valve c is arranged on the pipeline; the front end of the plate heat exchanger is communicated to the rear end of the hot water circulating pump through a pipeline, and a stop valve b is arranged on the section of the pipeline.
Furthermore, a stop valve a is arranged on a pipeline between the hot water circulating pump and the oil-water heat exchanger, and a stop valve d is arranged on a pipeline between the oil-water heat exchanger and the hot water heat storage tank.
Further, a stop valve e is arranged between the primary network circulating pump and the plate heat exchanger, and a stop valve g is arranged between the plate heat exchanger and a heat source; and a stop valve f is arranged on the parallel pipeline of the heat source.
Furthermore, hot water heat storage tank adopts metal casing, and this metal casing is provided with the intermediate layer, and the intermediate layer intussuseption is filled with insulation material, and the metal casing lateral wall is equipped with inlet tube and outlet pipe.
Further, the heat exchange transmission medium is T55 heat transfer oil, and the heat storage medium is water.
Furthermore, the number of the groove type solar heat collectors is multiple, and the plurality of groove type solar heat collectors are arranged in series.
Furthermore, the number of the oil-water heat exchangers is multiple, and the multiple oil-water heat exchangers are arranged in series or in parallel.
The utility model has the beneficial effects that: 1, decoupling is realized by a heat collection system and a heat supply system, decoupling is realized by introducing the heat storage system, decoupling of heat collection and heat supply processes is realized, the heat collection power of the heat collection system is adjusted in real time according to the solar irradiation intensity to realize collection of solar energy, the solar energy is converted into heat energy, and the heat energy is stored in a hot water heat storage tank; according to the time and space imbalance of the heat exchange station, heat is reasonably distributed to meet the heat load requirements of users at different time intervals, the adjustment flexibility of the heat exchange station is improved, and the heat of a heat storage system is called in real time to meet the differentiated requirements of the users;
2, abundant solar energy resources are utilized, the consumption of fossil energy is greatly reduced while free heat is obtained, the cost is reduced, the atmospheric environment is protected, the solar photo-thermal technology is used for the heat supply industry, and the economical efficiency of the system is further improved from the long-term development perspective;
3, the heat storage system is introduced into the heat supply industry, so that the heat storage system can provide guidance for rush repair and scheduling of heat sources, more time is saved for production, and the problem of unbalanced supply and demand structures of the heat supply network of the conventional heat exchange station is effectively solved macroscopically and microscopically.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Reference numbers in the figures: 1. the solar heat collector comprises a groove type solar heat collector, 2, an oil-water heat exchanger, 3, an oil-gas separator, 4, a heat conduction oil circulating pump, 5, a high-level oil groove, 6, an oil injection gear pump, 7, a low-level oil groove, 8, a hot water circulating pump, 9, a hot water heat storage tank, 10, a plate type heat exchanger, 11, a heat source, 12, a primary network circulating pump, 13, stop valves a, 14, stop valves b, 15, stop valves c, 16, stop valves d, 17, stop valves e, 18, stop valves f, 19, stop valves g, 20, a heat conduction oil heat collection pipe network, 21, a heat exchange station primary pipe network, 22 and a heat exchange station secondary pipe network.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
The utility model provides a heat exchange station system based on user's room temperature is nimble to be adjusted heat supply load, utilizes slot type solar collector 1 to collect solar radiation and change into heat energy to the conduction oil is as heat transfer transmission medium, uses water as heat-retaining medium, and indoor heating is sent to after the heat dissipation, is one of green sustainable heating heat supply mode.
The scheme is as follows: the solar energy heat collection system, the heat exchange and heat storage system and the heat exchange station coupling heat supply system are sequentially connected;
the solar photo-thermal heat collection system comprises: the solar energy heat collection system comprises a heat transfer medium loop formed by circularly communicating a groove type solar heat collector 1, an oil-water heat exchanger 2, an oil-gas separator 3 and a heat transfer oil circulating pump 4 through pipelines in sequence, wherein the heat transfer medium loop is used for heating a heat transfer transmission medium injected into a solar energy photo-thermal heat collection system through the groove type solar heat collector 1 and then conveying the heated heat transfer transmission medium to the oil-water heat exchanger 2; a front-section pipeline of the heat-conducting oil circulating pump 4 is connected with a low-level oil groove 7, and the low-level oil groove 7 is connected with an oiling gear pump 6; the oil-gas separator 3 is connected with the high-level oil groove 5, and the high-level oil groove 5 is provided with an exhaust hole; preferably, the heat exchange transmission medium is T55 heat conduction oil, and the main component is biphenyl-diphenyl ether; the number of the groove type solar heat collectors 1 is multiple, and the groove type solar heat collectors 1 are arranged in series; the number of the oil-water heat exchangers 2 is multiple, and the multiple oil-water heat exchangers 2 are arranged in series or in parallel.
The heat exchange and heat storage system comprises: the heat storage device comprises a heat storage medium loop formed by circularly communicating an oil-water heat exchanger 2, a hot water heat storage tank 9 and a hot water circulating pump 8 through pipelines in sequence, wherein the oil-water heat exchanger 2 is used for heating cold water on the shell pass of the oil-water heat exchanger 2 into hot water after heat exchange, and the hot water is stored in the hot water heat storage tank 9 so as to transfer the heat to a heating medium; a stop valve a13 is arranged on a pipeline between the hot water circulating pump 8 and the oil-water heat exchanger 2, and a stop valve d16 is arranged on a pipeline between the oil-water heat exchanger 2 and the hot water heat storage tank 9.
The heat exchange station is coupled with the heating system: the system comprises a supplementary heat supply medium loop formed by circularly communicating a hot water heat storage tank 9 and a water supply and return branch of a heat exchange station through a pipeline, wherein the supplementary heat supply medium loop is used for enabling a heat storage medium to transmit heat from the hot water heat storage tank 9 to the side of the heat exchange station. The water supply and return branch of the heat exchange station comprises a heat source 11, a primary network circulating pump 12 and a plate heat exchanger 10 which are connected in a closed loop manner; the rear end of the plate heat exchanger 10 is communicated to the front end of the hot water heat storage tank 9 through a pipeline, and a stop valve c15 is arranged on the pipeline; the front end of the plate heat exchanger 10 is communicated to the rear end of the hot water circulating pump 8 through a pipeline, and a stop valve b14 is arranged on the pipeline. A stop valve e17 is arranged between the primary network circulating pump 12 and the plate heat exchanger 10, and a stop valve g19 is arranged between the plate heat exchanger 10 and the heat source 11; a stop valve f18 is arranged on the parallel pipeline of the heat source 11. The system conveys heat-storage hot water of a hot water heat storage tank 9 to a water supply pipeline on the primary side of a heat exchange station through a stop valve, after heat exchange is carried out between the hot water heat storage tank and a plate heat exchanger 10 in the heat exchange station, return water is conveyed to the hot water heat storage tank 9 through a primary net circulating pump 12, and the hot water heat storage tank 9 waits for reheating temperature rise of the next stage.
The hot water heat storage tank 9 has a heat preservation effect and is used for storing hot water, a metal shell is adopted and provided with an interlayer, a heat preservation material is filled in the interlayer, and a water inlet pipe and a water outlet pipe are arranged on the side wall of the metal shell. The shape of hot water heat storage tank 9 heat storage tank chooses for use cylindrically or squarely, and its preferred structure is: consists of a water distributor, a metal shell, a heat insulation material, a main pipe interface, a blow-off pipe, an overflow pipe and the like; the hot water heat storage tank 9 is internally provided with a high temperature layer, a thermocline layer and a low temperature layer.
Preferably, the trough type solar heat collector 1 can be selected from the existing models on the market, preferably at least comprises a reflector, a reflector bracket, an end corrugated pipe, a vacuum heat collecting pipe, a heat collecting pipe support, a driving device and an upright post, and can reflect and focus sunlight to the vacuum heat collecting pipe. One driving device can drive 8-12 modules of the trough solar collector 1. The groove type solar heat collector 1 comprises a metal inner pipe and a glass outer pipe, wherein the metal inner pipe is usually 316L or 316Ti stainless steel, the length of a single heat collecting pipe is 4060-; the glass outer tube is usually 5.0 borosilicate glass, the length of a single heat collecting tube is more than 3900mm, and the outer diameter is 115 mm and 145 mm; the end bellows is 316L stainless steel.
Power devices are arranged in the heat transfer medium loop, the heat exchange medium loop, the heat supply medium loop and the heat storage medium loop; a power plant is a machine that delivers or pressurizes a fluid.
The working process of the solar photo-thermal heat collection system comprises the following steps: 1) and (4) injecting heat conduction oil. Injecting all cold state heat conducting oil into a low-level oil groove 7 through an oil injection gear pump 6; the heat conduction oil in the low-level oil groove 7 is conveyed to the whole heat conduction oil heat collecting pipe network 20 through the oiling gear pump 6, and when the liquid level of the high-level oil groove 5 exceeds 1/3, oiling of the whole system is finished; 2) and (5) oil boiling and air exhausting. Because a small amount of moisture and non-condensable gas can be mixed into the finished product heat conduction oil in the filling and transportation process and the injection system, the oil must be boiled and the gas must be fully exhausted before the system is put into operation. In order to achieve an optimal effect of the trough solar collector 1. After the oil boiling starts, the oiling gear pump 6 starts to operate, but the groove type solar heat collector 1 does not track the sun for heat collection at the moment, and after the whole system operates, whether the pipeline of the whole heat conduction oil heat collection pipe network 20 leaks or not and whether the valve leaks or not are checked. When no leakage is found, the groove type solar heat collector 1 can be gradually operated to track the sun to collect heat; along with the rising of the temperature of the heat conduction oil, moisture and non-condensable gas in the system enter the high-level oil groove 5 through the oil-gas separator 3 and are exhausted into the atmosphere through the exhaust hole of the high-level oil groove 5, and the circulation is carried out, so that when the steam is exhausted from the exhaust hole of the high-level oil groove 5, which cannot be detected by naked eyes, the oil boiling and exhausting process is considered to be finished.
Because the solar photo-thermal heat collection system is connected with the oil-water heat exchanger 2, in order to prevent the oil-water heat exchanger 2 from generating dry burning, the heat exchange and heat storage system must synchronously operate when the groove type solar heat collector 1 operates to track the sun.
The working process of the heat exchange and heat storage system comprises the following steps: when the trough type solar heat collector 1 runs and tracks the sun, the hot water circulating pump 8 is started, cold water is conveyed to the oil-water heat exchanger 2, the cold water is heated through heat exchange to form high-temperature water, the high-temperature water finally enters the hot water heat storage tank 9 to store heat, and the stop valve a13 and the stop valve d16 need to be opened at the same time.
The working process of the heat exchange station coupling heat supply system is as follows: closing the stop valve a13 and the stop valve d16, simultaneously opening the stop valve b14 and the hot water circulating pump 8, conveying high-temperature hot water in the hot water heat storage tank 9 to the outlet water supply side of the primary network circulating pump 12 of the primary network pipe network 21 of the heat exchange station, opening the stop valve f18 at the moment, waiting for the heat exchange of the high-temperature water with the secondary network 22 of the heat exchange station through the plate heat exchanger 10 of the heat exchange station, becoming low-temperature return water, passing through the stop valve c15, returning to the hot water heat storage tank 9 again, the hot water heat storage tank 9 becomes a cold water tank at the moment, waiting for the hot water tank 9 to be filled with water, closing the heat storage stop valve c15, subsequently closing the stop valve b14 and the hot water circulating pump 8, and finally closing the stop valve f 18.
The working process of the heat exchange and storage system is repeated by cold water in the hot water heat storage tank 9, so that a complete thermodynamic cycle system is formed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (10)
1. A heat exchange station system capable of flexibly adjusting heat supply based on user room temperature is characterized by comprising a solar photo-thermal heat collection system, a heat exchange and heat storage system and a heat exchange station coupling heat supply system which are sequentially connected;
the solar photo-thermal heat collection system comprises: the solar energy heat collection system comprises a heat transfer medium loop formed by circularly communicating a groove type solar heat collector (1), an oil-water heat exchanger (2), an oil-gas separator (3) and a heat transfer oil circulating pump (4) through pipelines, wherein the heat transfer medium loop is used for heating a heat transfer transmission medium injected into a solar energy light-heat collection system through the groove type solar heat collector (1) and then conveying the heated heat transfer transmission medium to the oil-water heat exchanger (2);
the heat exchange and heat storage system comprises: the heat storage device comprises a heat storage medium loop formed by circularly communicating an oil-water heat exchanger (2), a hot water heat storage tank (9) and a hot water circulating pump (8) through pipelines in turn, wherein the heat storage medium loop is used for heating a heat storage medium and conveying the heat storage medium to the hot water heat storage tank (9) after heat exchange of heat from a heat exchange transmission medium in the oil-water heat exchanger (2);
the heat exchange station is coupled with the heating system: the system comprises a supplementary heat supply medium loop formed by circularly communicating a hot water heat storage tank (9) and a water supply and return branch of a heat exchange station through a pipeline, wherein the supplementary heat supply medium loop is used for enabling a heat storage medium to transmit heat from the hot water heat storage tank (9) to the side of the heat exchange station.
2. The heat exchange station system for flexibly adjusting the heat supply amount based on the room temperature of the user according to claim 1, wherein a low-level oil groove (7) is connected to a front-stage pipeline of the heat transfer oil circulating pump (4), and the low-level oil groove (7) is connected with the oiling gear pump (6).
3. The heat exchange station system for flexibly adjusting the heat supply amount based on the room temperature of the user as claimed in claim 1, wherein the oil-gas separator (3) is connected with the high-level oil tank (5), and the high-level oil tank (5) is provided with an exhaust hole.
4. The heat exchange station system for flexibly adjusting the heat supply amount based on the room temperature of the user according to claim 1, wherein the water supply and return branch of the heat exchange station comprises a heat source (11), a primary network circulating pump (12) and a plate heat exchanger (10) which are connected in a closed loop; the rear end of the plate heat exchanger (10) is communicated to the front end of the hot water heat storage tank (9) through a pipeline, and a stop valve c (15) is arranged on the pipeline; the front end of the plate heat exchanger (10) is communicated to the rear end of the hot water circulating pump (8) through a pipeline, and a stop valve b (14) is arranged on the pipeline.
5. The heat exchange station system for flexibly adjusting heat supply amount based on user room temperature according to claim 1, wherein a stop valve a (13) is arranged on a pipeline between the hot water circulating pump (8) and the oil-water heat exchanger (2), and a stop valve d (16) is arranged on a pipeline between the oil-water heat exchanger (2) and the hot water heat storage tank (9).
6. The heat exchange station system for flexibly adjusting heat supply amount based on user room temperature according to claim 4, wherein a stop valve e (17) is arranged between the primary network circulating pump (12) and the plate heat exchanger (10), and a stop valve g (19) is arranged between the plate heat exchanger (10) and the heat source (11); and a stop valve f (18) is arranged on the parallel pipeline of the heat source (11).
7. The heat exchange station system for flexibly adjusting heat supply based on user room temperature as claimed in claim 1, wherein the hot water heat storage tank (9) is a metal shell, the metal shell is provided with an interlayer, the interlayer is filled with heat insulation material, and the side wall of the metal shell is provided with a water inlet pipe and a water outlet pipe.
8. The heat exchange station system for flexibly adjusting heat supply based on user room temperature as claimed in claim 1, wherein the heat exchange transmission medium is T55 heat transfer oil, and the heat storage medium is water.
9. The heat exchange station system for flexibly adjusting heat supply based on user room temperature as claimed in claim 1, wherein the trough type solar heat collector (1) is provided in plurality, and a plurality of trough type solar heat collectors (1) are arranged in series.
10. The heat exchange station system for flexibly adjusting the heat supply amount based on the room temperature of the user as claimed in claim 1, wherein the oil-water heat exchanger (2) is provided in plurality, and the plurality of oil-water heat exchangers (2) are arranged in series or in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121403738.4U CN216307943U (en) | 2021-06-23 | 2021-06-23 | Heat exchange station system based on user room temperature flexible adjustment heat supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121403738.4U CN216307943U (en) | 2021-06-23 | 2021-06-23 | Heat exchange station system based on user room temperature flexible adjustment heat supply |
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| CN202121403738.4U Active CN216307943U (en) | 2021-06-23 | 2021-06-23 | Heat exchange station system based on user room temperature flexible adjustment heat supply |
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Effective date of registration: 20230627 Address after: No. 8 Qingyuan Road, Dalian Development Area, Jinzhou District, Dalian, Liaoning 116600 Patentee after: Dalian Kaire branch of Northeast Electric Power Co., Ltd. of State Power Investment Group Patentee after: National electric investment group Northeast Electric Power Co.,Ltd. Address before: 116600 No. 8 Qingyuan Road, Dalian Economic and Technological Development Zone, Liaoning Province Patentee before: Dalian Kaire branch of Northeast Electric Power Co., Ltd. of State Power Investment Group |
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